The desperate Countess Zaleska (Gloria Holden).
A lesser effort in the Universal horror cycle, DRACULA'S DAUGHTER is often ignored because it's really a character study of a reluctant monster and her genuinely sad and lonely existence. I didn't dig it when I saw it as a kid because I was too young to relate to the Countess' plight, but once I was older I got what it was going for and now embrace it as a quiet, melancholy look at an outsider's attempt at fixing her inexorable fate and trying to make a futile connection. There's even a lesbian subtext that totally went over my head when I was a child, and though predatory, the Countess' lesbian moves are marked with a desperation born out of her crushing loneliness.
Not for all tastes, DRACULA'S DAUGHTER offers little by way of shocks but its personal story is a feast of characterization. Give it a shot.
Poster from the original theatrical release.